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Consolidate posix_fadvise implementations
This patch consolidates mostly of the Linux posix_fadvise{64} implementations
on sysdeps/unix/sysv/linux/posix_fadvise{64}.c. It still keeps arch-specific
files for:
* S390-32: it uses a packed structure to pass all the arguments on syscall.
It is the only supported port that implements __NR_fadvise64_64 in this
way.
* ARM: it does not implement __NR_fadvise64 (as other 32-bits ports), so
posix_fadvise calls internal posix_fadvise64 symbol.
* MIPS64 n64: it requires a different version number that other ports.
The new macro SYSCALL_LL{64} is used to handle the offset argument and
INTERNAL_SYSCALL_CALL to handle passing the correct number of expect
arguments.
The default Linux adds two new defines a port can use to control how
__NR_fadvise64_64 passes the kernel arguments:
* __ASSUME_FADVISE64_64_6ARG: the 'advise' argument is moved on second
position. This is the case of powerpc32 and arm to avoid implement
7 argument syscall.
* __ASSUME_FADVISE64_64_NO_ALIGN: for ABIs that defines
__ASSUME_ALIGNED_REGISTER_PAIRS packs the offset without the leading
'0'. This is the case of tile 32 bits.
ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64 (which is also
handled on arch kernel-feature.h).
Tested on x86_64, x32, i686, armhf, and aarch64.
* posix/Makefile (tests): Add tst-posix_fadvise and tst-posix_fadvise64.
* posix/tst-posix_fadvise.c: New file.
* posix/tst-posix_fadvise64.c: Likewise.
* posix/tst-posix_fadvise-common.c: Likewise.
* sysdeps/unix/sysv/linux/arm/kernel-features.h
(__ASSUME_FADVISE64_64_6ARG): Define.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
[!__powerpc64__] (__ASSUME_FADVISE64_64_6ARG): Add define.
* sysdeps/unix/sysv/linux/arm/posix_fadvise64.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise64.S: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c:
Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l64]:
Alias to __posix_fadvise64_l32.
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l32]:
Add compat definition to posix_fadvise64.
(SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) [__posix_fadvise64_l64]:
Add versioned definition to posix_fadvise64.
* sysdeps/unix/sysv/linux/posix_fadvise.c (posix_fadvise): Build iff
__OFF_T_MATCHES_OFF64_T is defined, use INTERNAL_SYSCALL_CALL, add
__ASSUME_FADVISE64_64_6ARG/__ASSUME_FADVISE64_64_NO_ALIGN support.
* sysdeps/unix/sysv/linux/posix_fadvise64.c (posix_fadvise64): Add
__ASSUME_FADVISE64_64_NO_ALIGN support and use INTERNAL_SYSCALL_CALL.
This commit is contained in:
Adhemerval Zanella
@ -27,6 +27,13 @@
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# undef __ASSUME_SET_ROBUST_LIST
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#endif
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/* ARM fadvise64_64 reorganize the syscall arguments. */
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#define __ASSUME_FADVISE64_64_6ARG 1
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/* Define this if your 32-bit syscall API requires 64-bit register
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pairs to start with an even-number register. */
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#define __ASSUME_ALIGNED_REGISTER_PAIRS 1
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/* ARM only has a syscall for fadvise64{_64} and it is defined with a
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non-standard name. */
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#define __NR_fadvise64_64 __NR_arm_fadvise64_64
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@ -1,38 +0,0 @@
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/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
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/* Advice the system about the expected behaviour of the application with
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respect to the file associated with FD. */
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int
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__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
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{
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INTERNAL_SYSCALL_DECL (err);
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int ret = INTERNAL_SYSCALL (arm_fadvise64_64, err, 6, fd, advise,
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__LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
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__LONG_LONG_PAIR ((long)(len >> 32), (long)len));
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if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
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return 0;
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return INTERNAL_SYSCALL_ERRNO (ret, err);
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}
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weak_alias (__posix_fadvise64_l64, posix_fadvise64);
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@ -1,37 +0,0 @@
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/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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/* Advice the system about the expected behaviour of the application with
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respect to the file associated with FD. */
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int
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posix_fadvise (int fd, off_t offset, off_t len, int advise)
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{
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INTERNAL_SYSCALL_DECL (err);
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int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
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__LONG_LONG_PAIR (offset >> 31, offset),
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__LONG_LONG_PAIR (len >> 31, len),
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advise);
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if (INTERNAL_SYSCALL_ERROR_P (ret, err))
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return INTERNAL_SYSCALL_ERRNO (ret, err);
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return 0;
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}
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@ -1,92 +0,0 @@
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/* Copyright (C) 1995-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define EINVAL 22
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#define ENOSYS 38
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#define EOVERFLOW 75
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#define SVRSP 16 /* saved register space */
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#define PARMS 4+SVRSP /* space for 4 saved regs */
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#define FD PARMS
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#define OFFLO FD+4
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#define OFFHI OFFLO+4
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#define LENLO OFFHI+4
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#define LENHI LENLO+4
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#define FLAGS LENHI+4
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.text
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ENTRY (__posix_fadvise64_l64)
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/* Save registers. */
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pushl %ebp
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cfi_adjust_cfa_offset (4)
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pushl %ebx
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cfi_adjust_cfa_offset (4)
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pushl %esi
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cfi_adjust_cfa_offset (4)
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pushl %edi
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cfi_adjust_cfa_offset (4)
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movl FD(%esp), %ebx
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cfi_rel_offset (ebx, 8)
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movl OFFLO(%esp), %ecx
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movl OFFHI(%esp), %edx
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movl LENLO(%esp), %esi
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cfi_rel_offset (esi, 4)
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movl LENHI(%esp), %edi
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cfi_rel_offset (edi, 0)
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movl FLAGS(%esp), %ebp
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cfi_rel_offset (ebp, 12)
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movl $SYS_ify(fadvise64_64), %eax
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ENTER_KERNEL
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/* Restore registers. */
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popl %edi
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cfi_adjust_cfa_offset (-4)
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cfi_restore (edi)
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popl %esi
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cfi_adjust_cfa_offset (-4)
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cfi_restore (esi)
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popl %ebx
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cfi_adjust_cfa_offset (-4)
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cfi_restore (ebx)
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popl %ebp
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cfi_adjust_cfa_offset (-4)
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cfi_restore (ebp)
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/* The function returns zero, or the error number. So all we
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have to do is negate the value passed back from the kernel. */
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/* If 0 > %eax > -4096 there was an error. */
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negl %eax
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/* Successful; return the syscall's value. */
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ret
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END (__posix_fadvise64_l64)
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.section .text.compat, "ax"
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ENTRY (__posix_fadvise64_l32)
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DO_CALL (fadvise64, 5)
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negl %eax
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ret
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PSEUDO_END_ERRVAL (__posix_fadvise64_l32)
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default_symbol_version (__posix_fadvise64_l64, posix_fadvise64, GLIBC_2.3.3)
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symbol_version (__posix_fadvise64_l32, posix_fadvise64, GLIBC_2.2)
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@ -1,41 +0,0 @@
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/* Copyright (C) 2007-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
|
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
|
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|
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The GNU C Library is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
|
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|
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You should have received a copy of the GNU Lesser General Public
|
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License along with the GNU C Library. If not, see
|
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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/* Advice the system about the expected behaviour of the application with
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respect to the file associated with FD. */
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int
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posix_fadvise (int fd, off_t offset, off_t len, int advise)
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{
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/* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */
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#ifdef __NR_fadvise64
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INTERNAL_SYSCALL_DECL (err);
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int ret = INTERNAL_SYSCALL (fadvise64, err, 7, fd, 0,
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__LONG_LONG_PAIR (offset >> 31, offset),
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__LONG_LONG_PAIR (len >> 31, len),
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advise);
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if (INTERNAL_SYSCALL_ERROR_P (ret, err))
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return INTERNAL_SYSCALL_ERRNO (ret, err);
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return 0;
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#else
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return ENOSYS;
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#endif
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}
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@ -1,60 +0,0 @@
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/* Copyright (C) 2007-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
|
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
|
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|
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The GNU C Library is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
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You should have received a copy of the GNU Lesser General Public
|
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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/* Advice the system about the expected behaviour of the application with
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respect to the file associated with FD. */
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int
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__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
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{
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/* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */
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#ifdef __NR_fadvise64
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INTERNAL_SYSCALL_DECL (err);
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int ret = INTERNAL_SYSCALL (fadvise64, err, 7, fd, 0,
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__LONG_LONG_PAIR ((long) (offset >> 32),
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(long) offset),
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__LONG_LONG_PAIR ((long) (len >> 32),
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(long) len),
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advise);
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if (INTERNAL_SYSCALL_ERROR_P (ret, err))
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return INTERNAL_SYSCALL_ERRNO (ret, err);
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return 0;
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#else
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return ENOSYS;
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#endif
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}
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#include <shlib-compat.h>
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#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
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int
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attribute_compat_text_section
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__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
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{
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return __posix_fadvise64_l64 (fd, offset, len, advise);
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}
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versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
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compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
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#else
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strong_alias (__posix_fadvise64_l64, posix_fadvise64);
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#endif
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@ -1,37 +0,0 @@
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/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
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This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
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|
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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/* Advice the system about the expected behaviour of the application with
|
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respect to the file associated with FD. */
|
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int
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posix_fadvise (int fd, off_t offset, off_t len, int advise)
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{
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#ifdef __NR_fadvise64
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INTERNAL_SYSCALL_DECL (err);
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int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
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if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
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return INTERNAL_SYSCALL_ERRNO (ret, err);
|
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return 0;
|
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#else
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return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
@ -1,55 +0,0 @@
|
||||
/* Copyright (C) 2007-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
int
|
||||
__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
|
||||
{
|
||||
/* MIPS kernel only has NR_fadvise64 which acts as NR_fadvise64_64 */
|
||||
#ifdef __NR_fadvise64
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
|
||||
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
return 0;
|
||||
#else
|
||||
return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
#include <shlib-compat.h>
|
||||
|
||||
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
|
||||
int
|
||||
attribute_compat_text_section
|
||||
__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
|
||||
{
|
||||
return __posix_fadvise64_l64 (fd, offset, len, advise);
|
||||
}
|
||||
|
||||
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||||
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||||
#else
|
||||
strong_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||||
#endif
|
||||
@ -1,50 +0,0 @@
|
||||
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#define posix_fadvise64 __no_posix_fadvise64
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
#undef posix_fadvise64
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
int
|
||||
posix_fadvise (int fd, off_t offset, off_t len, int advise)
|
||||
{
|
||||
#ifdef __NR_fadvise64
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
|
||||
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
return 0;
|
||||
#else
|
||||
return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
#include <shlib-compat.h>
|
||||
|
||||
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
strong_alias (posix_fadvise, __posix_fadvise64_l32);
|
||||
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||||
strong_alias (posix_fadvise, __posix_fadvise64_l64);
|
||||
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||||
#else
|
||||
weak_alias (posix_fadvise, posix_fadvise64);
|
||||
#endif
|
||||
@ -1 +1,28 @@
|
||||
/* posix_fadvise64 is in posix_fadvise.c */
|
||||
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#undef strong_alias
|
||||
#define strong_alias(a, b)
|
||||
|
||||
#include <sysdeps/unix/sysv/linux/posix_fadvise64.c>
|
||||
|
||||
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
_strong_alias (__posix_fadvise64_l64, __posix_fadvise64_l32);
|
||||
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||||
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||||
#endif
|
||||
_strong_alias (__posix_fadvise64_l64, posix_fadvise);
|
||||
|
||||
@ -22,27 +22,46 @@
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
#ifndef __OFF_T_MATCHES_OFF64_T
|
||||
|
||||
/* Both arm and powerpc implements fadvise64_64 with last 'advise' argument
|
||||
just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
|
||||
ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64.
|
||||
|
||||
tile requires __ASSUME_ALIGNED_REGISTER_PAIRS but implements the 32-bit
|
||||
fadvise64_64 without the padding 0 after fd.
|
||||
|
||||
s390 implements fadvice64_64 using a specific struct with arguments
|
||||
packed inside. This is the only implementation handled in arch-specific
|
||||
code. */
|
||||
|
||||
int
|
||||
posix_fadvise (int fd, off_t offset, off_t len, int advise)
|
||||
{
|
||||
#if defined(__NR_fadvise64) || defined(__NR_fadvise64_64)
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
# ifdef __NR_fadvise64
|
||||
int ret = INTERNAL_SYSCALL (fadvise64, err, 5, fd,
|
||||
__LONG_LONG_PAIR (offset >> 31, offset), len,
|
||||
advise);
|
||||
int ret = INTERNAL_SYSCALL_CALL (fadvise64, err, fd,
|
||||
__ALIGNMENT_ARG SYSCALL_LL (offset),
|
||||
len, advise);
|
||||
# else
|
||||
int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
|
||||
__LONG_LONG_PAIR ((long) (offset >> 31),
|
||||
(long) offset),
|
||||
__LONG_LONG_PAIR ((long) (len >> 31),
|
||||
(long) len),
|
||||
advise);
|
||||
# ifdef __ASSUME_FADVISE64_64_6ARG
|
||||
int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, err, fd, advise,
|
||||
__ALIGNMENT_ARG SYSCALL_LL (offset),
|
||||
SYSCALL_LL (len));
|
||||
# else
|
||||
|
||||
# ifdef __ASSUME_FADVISE64_64_NO_ALIGN
|
||||
# undef __ALIGNMENT_ARG
|
||||
# define __ALIGNMENT_ARG
|
||||
# endif
|
||||
|
||||
int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, err, fd,
|
||||
__ALIGNMENT_ARG SYSCALL_LL (offset),
|
||||
SYSCALL_LL (len), advise);
|
||||
# endif
|
||||
# endif
|
||||
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
return 0;
|
||||
#else
|
||||
return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
#endif /* __OFF_T_MATCHES_OFF64_T */
|
||||
|
||||
@ -17,10 +17,29 @@
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
#include <shlib-compat.h>
|
||||
|
||||
int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
|
||||
int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
|
||||
|
||||
/* Both arm and powerpc implements fadvise64_64 with last 'advise' argument
|
||||
just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
|
||||
ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64.
|
||||
|
||||
tile requires __ASSUME_ALIGNED_REGISTER_PAIRS but implements the 32-bit
|
||||
fadvise64_64 without the padding 0 after fd.
|
||||
|
||||
s390 implements fadvice64_64 using a specific struct with arguments
|
||||
packed inside. This is the only implementation handled in arch-specific
|
||||
code. */
|
||||
|
||||
#ifdef __ASSUME_FADVISE64_64_NO_ALIGN
|
||||
# undef __ALIGNMENT_ARG
|
||||
# define __ALIGNMENT_ARG
|
||||
#endif
|
||||
|
||||
#ifndef __NR_fadvise64_64
|
||||
# define __NR_fadvise64_64 __NR_fadvise64
|
||||
#endif
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
@ -29,20 +48,24 @@ int
|
||||
__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
|
||||
{
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
|
||||
__LONG_LONG_PAIR ((long) (offset >> 32),
|
||||
(long) offset),
|
||||
__LONG_LONG_PAIR ((long) (len >> 32),
|
||||
(long) len),
|
||||
advise);
|
||||
#ifdef __ASSUME_FADVISE64_64_6ARG
|
||||
int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, err, fd, advise,
|
||||
SYSCALL_LL64 (offset), SYSCALL_LL64 (len));
|
||||
#else
|
||||
int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, err, fd,
|
||||
__ALIGNMENT_ARG SYSCALL_LL64 (offset),
|
||||
SYSCALL_LL64 (len), advise);
|
||||
#endif
|
||||
if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return 0;
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
}
|
||||
|
||||
#include <shlib-compat.h>
|
||||
|
||||
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
/* The type of the len argument was changed from size_t to off_t in
|
||||
POSIX.1-2003 TC1. */
|
||||
#ifndef __OFF_T_MATCHES_OFF64_T
|
||||
# if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
|
||||
|
||||
int
|
||||
attribute_compat_text_section
|
||||
@ -53,6 +76,10 @@ __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
|
||||
|
||||
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||||
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||||
# else
|
||||
weak_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||||
# endif
|
||||
#else
|
||||
strong_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||||
weak_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||||
strong_alias (__posix_fadvise64_l64, posix_fadvise);
|
||||
#endif
|
||||
|
||||
@ -46,4 +46,9 @@
|
||||
# define __ASSUME_ALIGNED_REGISTER_PAIRS 1
|
||||
#endif
|
||||
|
||||
/* powerpc compat fadvise64_64 reorganize the syscall argument. */
|
||||
#ifndef __powerpc64__
|
||||
# define __ASSUME_FADVISE64_64_6ARG 1
|
||||
#endif
|
||||
|
||||
#include_next <kernel-features.h>
|
||||
|
||||
@ -1,39 +0,0 @@
|
||||
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
int
|
||||
posix_fadvise (int fd, off_t offset, off_t len, int advise)
|
||||
{
|
||||
#ifdef __NR_fadvise64
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64, err, 6, fd, 0,
|
||||
__LONG_LONG_PAIR (offset >> 31, offset), len,
|
||||
advise);
|
||||
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
return 0;
|
||||
#else
|
||||
return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
@ -1,55 +0,0 @@
|
||||
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
|
||||
int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
|
||||
int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
int
|
||||
__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
|
||||
{
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd, advise,
|
||||
__LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
|
||||
__LONG_LONG_PAIR ((long)(len >> 32), (long)len));
|
||||
if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return 0;
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
}
|
||||
|
||||
#include <shlib-compat.h>
|
||||
|
||||
#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
|
||||
|
||||
int
|
||||
attribute_compat_text_section
|
||||
__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
|
||||
{
|
||||
return __posix_fadvise64_l64 (fd, offset, len, advise);
|
||||
}
|
||||
|
||||
versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
|
||||
compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
|
||||
#else
|
||||
strong_alias (__posix_fadvise64_l64, posix_fadvise64);
|
||||
#endif
|
||||
@ -23,4 +23,5 @@
|
||||
pairs to start with an even-number register. */
|
||||
#ifndef _LP64
|
||||
# define __ASSUME_ALIGNED_REGISTER_PAIRS 1
|
||||
# define __ASSUME_FADVISE64_64_NO_ALIGN 1
|
||||
#endif
|
||||
|
||||
@ -1,40 +0,0 @@
|
||||
/* Copyright (C) 2003-2016 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#define posix_fadvise64 __no_posix_fadvise64
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <sysdep.h>
|
||||
#undef posix_fadvise64
|
||||
|
||||
/* Advice the system about the expected behaviour of the application with
|
||||
respect to the file associated with FD. */
|
||||
|
||||
int
|
||||
posix_fadvise (int fd, off_t offset, off_t len, int advise)
|
||||
{
|
||||
#ifdef __NR_fadvise64
|
||||
INTERNAL_SYSCALL_DECL (err);
|
||||
int ret = INTERNAL_SYSCALL (fadvise64, err, 4, fd, offset, len, advise);
|
||||
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
|
||||
return INTERNAL_SYSCALL_ERRNO (ret, err);
|
||||
return 0;
|
||||
#else
|
||||
return ENOSYS;
|
||||
#endif
|
||||
}
|
||||
weak_alias (posix_fadvise, posix_fadvise64)
|
||||
@ -1 +0,0 @@
|
||||
/* posix_fadvise64 is in posix_fadvise.c */
|
||||
@ -3,5 +3,5 @@
|
||||
fallocate - fallocate Ci:iiii fallocate fallocate64
|
||||
gettimeofday - gettimeofday:__vdso_gettimeofday@LINUX_2.6 i:pP __gettimeofday gettimeofday
|
||||
personality EXTRA personality Ei:i __personality personality
|
||||
posix_fadvise - fadvise64 Vi:iiii posix_fadvise posix_fadvise64
|
||||
posix_fadvise64 - fadvise64 Vi:iiii posix_fadvise posix_fadvise64
|
||||
time - time:__vdso_time@LINUX_2.6 Ei:P time
|
||||
|
||||
Reference in New Issue
Block a user